Based on the analysis of clip videos, written cued dialogues, interviews, lesson plan designs, and the teacher’s reflection notes, this study had the following major findings. First, the top grammatical error that the fifth graders made was the third person singular verb. The top pronunciation error that they made during the video clips was final consonant omission on the plural nouns. Secondly, the fifth graders’ self-checking and pair-checking on cued dialogues and video clips reduced their grammatical and pronunciation errors. Therefore, their oral fluency improved gradually. Suggestions on effective instructional strategies on designing cued dialogues and integration of Clips Application to foster elementary school learners’ oral fluency were provided.